CN107764398A - A kind of non-homogeneous smog medium polarization transfer characteristics test system - Google Patents
A kind of non-homogeneous smog medium polarization transfer characteristics test system Download PDFInfo
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- CN107764398A CN107764398A CN201711138090.0A CN201711138090A CN107764398A CN 107764398 A CN107764398 A CN 107764398A CN 201711138090 A CN201711138090 A CN 201711138090A CN 107764398 A CN107764398 A CN 107764398A
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- 230000010287 polarization Effects 0.000 title claims abstract description 83
- 238000012546 transfer Methods 0.000 title claims abstract description 33
- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000004088 simulation Methods 0.000 claims abstract description 25
- 239000000779 smoke Substances 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims description 9
- 239000000443 aerosol Substances 0.000 claims description 7
- 230000033228 biological regulation Effects 0.000 claims description 6
- 235000019504 cigarettes Nutrition 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 14
- 238000011160 research Methods 0.000 abstract description 8
- 238000002474 experimental method Methods 0.000 abstract description 7
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 description 5
- 239000003595 mist Substances 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J4/00—Measuring polarisation of light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/21—Polarisation-affecting properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/21—Polarisation-affecting properties
- G01N2021/216—Polarisation-affecting properties using circular polarised light
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
A kind of non-homogeneous smog medium polarization transfer characteristics test system,Belong to polarisation transfer field of detecting,System is polarized including polarization,Non-homogeneous smoke simulation system,Polarization Detection system,Computer disposal and control system,Wherein polarization is polarized system,Non-homogeneous smoke simulation system,Polarization Detection system is successively set in the transmission light path of light beam,Can the non-homogeneous smog medium generation of complete independently the invention provides one kind,Ambient parameter monitors and test,And the system of polarization transfer characteristics test,The system is to ensure the accuracy of measurement data,Using polarizing beamsplitter system,Real-time synchronization measures smokescope and transmission polarization characteristic in non-homogeneous smoky environment,Make non-homogeneous environment parameter corresponding in real time with transmission measurement data,Improve the problem of medium parameter measurement is delayed with polarization transfer characteristics measurement in conventional uniform environment,It is improved the result accuracy rate of experiment test,Research for the polarization transfer characteristics in non-homogeneous smoky environment provides experiment test device.
Description
Technical field
The present invention relates to a kind of non-homogeneous smog medium polarization transfer characteristics test system, belongs to polarisation transfer detection neck
Domain.
Background technology
The polarization dimensional information that polarization imaging can not reflect due to adding intensity and spectrum on the basis of intensity imaging, energy
The operating distance under the environment such as the difference between target and background, increase haze, flue dust is enough significantly increased, turns into and solves smog etc.
The effective means detected under particular surroundings, thus polarization transfer characteristics are studied to actual detection in this particular medium
With important Research Significance.
At present, the research to polarization transfer characteristics, which is also predominantly stayed in laboratory, prepares uniform, spherical, isotropism Jie
Matter, polarization transfer characteristics are tested under the media environment, but in actual environment, smoky environment is often uncontrollable
, in recent years, with the extensive use of Polarization Detection technology, the no longer single tradition that rests on of the research to Polarization Detection can
Control the research in medium, the most common gravitational effect being particularly due in the presence of nature so that smog can not
All be present certain difference in the presence sedimentation phenomenon avoided, this research for allowing in laboratory to polarization transfer characteristics, reduce
To the accuracy of polarization transfer characteristics experiment test, and due to substantial amounts of uncertain in non-homogeneous environment, can test out
The problem of polarization transfer characteristics change with the real-time synchronization of non-homogeneous environment and are anxious to be resolved.
Therefore, need a kind of non-homogeneous smog badly due to non-homogeneous smog media environment caused by sedimentation for this and be situated between
Matter polarization transfer characteristics test system.
The content of the invention
For due to non-homogeneous smog media environment caused by smog sedimentation phenomenon, in order to study non-homogeneous smog medium
Polarization transfer characteristics, the present invention proposes a kind of non-homogeneous smog medium polarization transfer characteristics test system.
The present invention adopts the following technical scheme that：A kind of non-homogeneous smog medium polarization transfer characteristics test system, it is special
Sign is, including polarization is polarized system, non-homogeneous smoke simulation system, Polarization Detection system, computer disposal and control system,
Wherein polarization is polarized system, non-homogeneous smoke simulation system and Polarization Detection system and is successively set in the transmission light path of light beam,
The polarization, which is polarized system, includes laser, colimated light system, optical filter, linear polarizer, quarter-wave plate, along light
Direction of propagation laser, colimated light system, optical filter, linear polarizer and the quarter-wave plate of line are sequentially arranged；
The non-homogeneous smoke simulation internal system includes aerosol producer, Malvern ParticleSizer, and wherein smog occurs
Device and Malvern ParticleSizer are connected with computer disposal with control system；
The Polarization Detection system includes half-reflecting half mirror, light power meter and polarization state measuring instrument, wherein half-reflecting half mirror
It is placed on the emitting light path of non-homogeneous smoky environment simulation system, and the ratio between transmission potential and reflected energy are 1:1, luminous power
Meter is placed on the transmitted light path of half-reflecting half mirror, and is connected with computer disposal with control system, and polarization state measuring instrument is placed in half
On the reflected light path of anti-pellicle mirror, and it is connected with computer disposal with control system.
Further, the axle on the basis of horizontal direction, the linear polarizer angle of regulation range are 0 °~360 °, a quarter
The angle of regulation range of wave plate is 0 °~360 ° or removed.
By above-mentioned design, the present invention can bring following beneficial effect：
1st, for non-homogeneous smog media environment caused by smog sedimentation in nature, the invention provides a kind of non-equal
Even smog medium polarization transfer characteristics test system, the system can the non-homogeneous smog medium of complete independently be produced, ambient parameter is supervised
Control and test, and all processes of polarization transfer characteristics test, for the research of the polarization transfer characteristics in non-homogeneous smoky environment
Provide experiment test device.
2nd, the present invention is to ensure the accuracy of measurement data, and using polarizing beamsplitter system, real-time synchronization measures non-homogeneous cigarette
Smokescope and transmission polarization characteristic, make non-homogeneous environment parameter corresponding in real time with transmission measurement data, improve in mist environment
The problem of medium parameter measurement is delayed with polarization transfer characteristics measurement in conventional uniform environment, make the result accuracy rate of experiment test
It is improved.
Brief description of the drawings
Fig. 1 is a kind of structural representation of non-homogeneous smog medium polarization transfer characteristics test system of the present invention.
In figure：1- polarizations are polarized system, 11- lasers, 12- colimated light systems, 13- optical filters, 14- linear polarizers, 15- tetra-
The non-homogeneous smoke simulation system of/mono- wave plate, 2-, 21- aerosol producers, 22- Malvern ParticleSizers, 3- Polarization Detections system,
31- half-reflecting half mirrors, 32- light power meters, 33- polarization state measuring instruments, 4- computer disposals and control system.
Embodiment
Below in conjunction with brief description of the drawings, the invention will be further described with embodiment, and the present invention proposes a kind of non-
Uniform smog medium polarization transfer characteristics test system, as shown in figure 1, being polarized system 1, non-homogeneous smoke simulation system including polarization
System 2, Polarization Detection system 3, computer disposal and control system 4, wherein polarization is polarized system 1, non-homogeneous smoke simulation system 2
And Polarization Detection system 3 is successively set in the transmission light path of light beam.
The polarization is polarized system 1 by laser 11, colimated light system 12, optical filter 13, linear polarizer 14 and a quarter
Wave plate 15 forms, along the direction of propagation laser 11 of light, colimated light system 12, optical filter 13, linear polarizer 14 and a quarter
Wave plate 15 is sequentially arranged, and the axle on the basis of horizontal direction, and the angle of regulation range of linear polarizer 14 is 0 °~360 °, a quarter
The angle of regulation range of wave plate 15 is 0 °~360 ° or removed.
The non-homogeneous smoke simulation system 2 includes aerosol producer 21, wherein Malvern ParticleSizer 22, aerosol producer
21 can produce water smoke, mist of oil equal sphere smoke particle.As shown in figure 1, Malvern ParticleSizer 22 can be enterprising in two positions of A, B
Row regulation, and position A does not block incident and outgoing beam optional position in non-homogeneous smoke simulation system 2, position B is entering
Penetrate in the light path with outgoing beam.
The Polarization Detection system 3 includes half-reflecting half mirror 31, light power meter 32 and polarization state measuring instrument 33, wherein half is anti-
Pellicle mirror 31 is placed on the emitting light path of non-homogeneous smoky environment simulation system 2, and the ratio between transmission potential and reflected energy are
1:1, light power meter 32 is placed on the transmitted light path of half-reflecting half mirror 31, and is connected with computer disposal with control system 4, polarization
State measuring instrument 33 is placed on the reflected light path of half-reflecting half mirror 31, and is connected with computer disposal with control system 4.
The computer disposal and control system 4, for obtained by handling light power meter 32 and polarization state measuring instrument 33
Data, and the non-homogeneous smoke simulation system 2 of control.
The method of testing specific implementation step of non-homogeneous smog medium polarization transfer characteristics test system：
Step 1: the Malvern ParticleSizer 22 in non-homogeneous smoke simulation system 2 is moved on into position B by position A, by calculating
Machine processing controls aerosol producer 21 to be filled with smog into non-homogeneous smoke simulation system 2 with control system 4, and by non-homogeneous cigarette
Fan in mist simulation system 2 stirs, and is controlled by computer disposal and control system 4 and opens Malvern ParticleSizer 22, surveys
The incident size information with smoke particle on emitting light path of amount；
Step 2: emptying the smog in non-homogeneous smoke simulation system 2, Malvern ParticleSizer 22 is moved back to by position B again
To position A；
Step 3: opening laser 11, light beam by colimated light system 12, optical filter 13, produces uniform, collimation flat successively
Row light, this beam directional light pass through linear polarizer 14, adjust the angle of linear polarizer 14, produce horizontal polarization light, remove four/
One wave plate 15, horizontal polarization light is produced, is incided in non-homogeneous smoke simulation system 2, light beam is through non-homogeneous smoke simulation
System 2 incides half-reflecting half mirror 31, is divided into two-way by half-reflecting half mirror 31, and per the luminous intensity all same of road light beam,
Wherein a branch of light path is used to measure luminous intensity by light power meter 32, and another beam optical path passes through polarization state measuring instrument 33, for surveying
Measure polarization state；
Step 4: smog is filled with into non-homogeneous smoke simulation system 2 from aerosol producer 21 again, and by non-homogeneous cigarette
Fan in mist simulation system 2 is stirred, and light in this time is recorded respectively by light power meter 32 and polarization state measuring instrument 33
The situation of change of intensity values and polarization polarization degree, after the light intensity value stabilization that light power meter 32 measures, stop experimental implementation；
Step 5: light power meter 32 and the data in polarization state measuring instrument 33 are entered with control system 4 by computer disposal
Row processing, obtain corresponding polarization characteristic parameter under different non-homogeneous smokescopes；
Step 6: in regulating step three linear polarizer 14 angle, for producing the incident ray polarized light of different polarization states,
Or quarter-wave plate 15 is added after linear polarizer 14 in step 3, linear polarizer 14 and quarter-wave plate 15 are adjusted, is used
In the circularly polarized light for producing different polarization states, repeat step four, step 5, non-homogeneous smog medium under other polarization states is measured
Polarization transfer characteristics.
The present invention relates to a kind of non-homogeneous smog medium polarization transfer characteristics test system, for due to smog sedimentation phenomenon
Caused non-homogeneous smog media environment, solve what real-time synchronization measurement polarization transfer characteristics changed with non-homogeneous smoky environment
Problem, the invention provides one kind can the non-homogeneous smog medium of complete independently be produced, ambient parameter is monitored and passed with test, and polarization
The system of defeated characteristic test, the system is to ensure the accuracy of measurement data, and using polarizing beamsplitter system, real-time synchronization measurement is non-
Smokescope and transmission polarization characteristic, make non-homogeneous environment parameter corresponding in real time with transmission measurement data in uniform smoky environment,
The problem of medium parameter measurement is delayed with polarization transfer characteristics measurement in conventional uniform environment is improved, makes the result of experiment test
Accuracy rate is improved, and the research for the polarization transfer characteristics in non-homogeneous smoky environment provides experiment test device.
Claims (2)
- A kind of 1. non-homogeneous smog medium polarization transfer characteristics test system, it is characterised in that including polarization be polarized system (1), Non-homogeneous smoke simulation system (2), Polarization Detection system (3), computer disposal and control system (4), wherein polarization is polarized and is System (1), non-homogeneous smoke simulation system (2) and Polarization Detection system (3) are successively set in the transmission light path of light beam,It is described polarization be polarized system (1) include laser (11), colimated light system (12), optical filter (13), linear polarizer (14) and Quarter-wave plate (15), along the direction of propagation laser (11) of light, colimated light system (12), optical filter (13), linear polarizer (14) and quarter-wave plate (15) is sequentially arranged；Include aerosol producer (21), wherein Malvern ParticleSizer (22), cigarette inside the non-homogeneous smoke simulation system (2) Fog generator (21) and Malvern ParticleSizer (22) are connected with computer disposal with control system (4)；The Polarization Detection system (3) includes half-reflecting half mirror (31), light power meter (32) and polarization state measuring instrument (33), wherein Half-reflecting half mirror (31) is placed on the emitting light path of non-homogeneous smoky environment simulation system (2), and transmission potential and reflection energy The ratio between amount is 1:1, light power meter (32) is placed on the transmitted light path of half-reflecting half mirror (31), and is with computer disposal and control System (4) connection, polarization state measuring instrument (33) are placed on the reflected light path of half-reflecting half mirror (31), and with computer disposal with controlling System (4) connects.
- 2. a kind of non-homogeneous smog medium polarization transfer characteristics test system according to claim 1, it is characterized in that：With water The axle square on the basis of, linear polarizer (14) angle of regulation range are 0 °~360 °, the angle of quarter-wave plate (15) Adjustable range is 0 °~360 ° or removed.
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| CN201711138090.0A CN107764398A (en) | 2017-11-16 | 2017-11-16 | A kind of non-homogeneous smog medium polarization transfer characteristics test system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332850A (en) * | 2018-03-23 | 2018-07-27 | 广东建元和安科技发展有限公司 | A kind of the test system and its test method of laser transmission characteristic under low contrast environment |
| CN112827515A (en) * | 2020-12-08 | 2021-05-25 | 南京理工大学 | Concentration-controllable smoke environment test field and test method |
| CN113514400A (en) * | 2021-04-23 | 2021-10-19 | 长春理工大学 | Polarization measurement method of smoke particle Mueller matrix |
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| CN104865224A (en) * | 2015-06-05 | 2015-08-26 | 长春理工大学 | Division-of-amplitude type measurement method of patterns in scattering characteristic Mueller matrix for smoke medium |
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2017
- 2017-11-16 CN CN201711138090.0A patent/CN107764398A/en active Pending
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| CN104865224A (en) * | 2015-06-05 | 2015-08-26 | 长春理工大学 | Division-of-amplitude type measurement method of patterns in scattering characteristic Mueller matrix for smoke medium |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332850A (en) * | 2018-03-23 | 2018-07-27 | 广东建元和安科技发展有限公司 | A kind of the test system and its test method of laser transmission characteristic under low contrast environment |
| CN112827515A (en) * | 2020-12-08 | 2021-05-25 | 南京理工大学 | Concentration-controllable smoke environment test field and test method |
| CN113514400A (en) * | 2021-04-23 | 2021-10-19 | 长春理工大学 | Polarization measurement method of smoke particle Mueller matrix |
| CN113514400B (en) * | 2021-04-23 | 2022-10-11 | 长春理工大学 | Polarization measurement method of smoke particle Mueller matrix |
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